Connecting To Ground - Danfoss VLT AutomationDrive FC 302 Operating Manual

Operating Guide | VLT® AutomationDrive FC 302

5.6 Connecting to Ground

Context:
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the drive properly can result in death or serious injury.
Ensure the correct grounding of the equipment by a certified electrical installer.
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For electrical safety:
• Ground the drive in accordance with applicable standards and directives.
• Use a dedicated ground wire for input power, motor power, and control wiring.
• Do not ground 1 drive to another in a daisy chain fashion.
• Keep the ground wire connections as short as possible.
• Follow motor manufacturer wiring requirements.
• Minimum cable cross-section: 10 mm
• Tighten the terminals in accordance with the information provided in
For EMC-compliant installation:
• Establish electrical contact between the cable shield and the drive enclosure by using metal cable glands or by using the clamps
provided on the equipment.
• Reduce burst transient by using high-strand wire.
• Do not use twisted shield ends (pigtails).
POTENTIAL EQUALIZATION
There is a risk of burst transient when the ground potential between the drive and the control system is different.
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Install equalizing cables between the system components. Recommended cable cross-section: 16 mm
Danfoss A/S © 2019.12
W A R N I N G
2
(6 AWG) (or 2 rated ground wires terminated separately).
N O T I C E
9.10 Fastener Torque Ratings.
AQ275652476278en-000101 / 130R0709| 45
Electrical Installation
2
(5 AWG).